lewisant123 lewisant123
  • 12-05-2017
  • Mathematics
contestada

Find the 30th term of an arithmetic sequence whose first term is 2 and common difference is 5.

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tonb
tonb tonb
  • 12-05-2017
2 + 29 times 5 = 147

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zebsi0n
zebsi0n zebsi0n
  • 12-05-2017
First, create a formula for the arithmetic sequence.
a(n) = a(1) + d(n - 1)
a(n) = 2 + 5(n - 1)
a(30) = 2 + 5(29)
a(30) = 2 + 145
a(30) = 147

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